I don't know if he is a racist or not, but forget HN. Last couple years it has gone on the deep end, not sure if delusion or $ interests, but it is impossible to have a decent conversation here. I think the only reason this article stayed up is because OAI is starting to be a bit 'toxic' now, but if this was published a year ago, it would have been flagged to oblivion.
So just ignore those points and flags. HN *used* to be a nice place for intelectual conversations, even if you disagreed with each other. Now is nothing more than bots, people with financial interests in this bubble or sycophants.